Flame envelopes your strike, surging through you and into a target. Make an unarmed strike or a melee attack with a weapon you're holding against one creature within 5 feet of you. On a hit, the target suffers the attack’s normal effects, and takes an additional 1d6 fire damage.   When you reach 5th level, the attack deals an extra 1d6 fire damage (2d6) to the target on a hit, and the reach of the attack increases by 5 feet (10 feet). The fire damage and range increase by 1d6 and 5 feet again at 11th level (3d6 and 15 feet) and 17th level (4d6 and 20 feet).